Field of Dreams State

The nation is focused on Iowa today. Not because it has been the birthplace of six Mets:
Jim McAndrew 38 Win Shares as a Met
Jack Hamilton 8 Win Shares as a Met
Lute Barnes 2 Win Shares as a Met
Ken Henderson 1 Win Share as a Met
Rich Folkers 0 Win Shares as a Met (29.3 IP in 1970, 6.44 ERA, for the Mets)
Kevin Tapani 0 Win Shares as a Met (only 7 IP for the Mets, but went on to a long career as a solidly average pitcher, mostly for the Twins and Cubs; 124 career Win Shares)

Hall of Famers born in Iowa:
Fred Clarke 400 Win Shares
Cap Anson 381 Win Shares
Bob Feller 292 Win Shares
Red Faber 292 Win Shares
Dave Bancroft 269 Win Shares
Dazzy Vance 241 Win Shares

The only active major leaguers who have had at least one career Win Share and are native Iowans:
Jon Lieber 109 Win Shares
Casey Blake 62 Win Shares
Jerry Hairston 57 Win Shares
Wes Obermueller 6 Win Shares
Jeff Clement 2 Win Shares
Joel Hanrahan 1 Win Share